Why Inductance is the property of a coil that opposes changes in current by storing energy in a magnetic field, and it is measured in henrys, abbreviated H. One henry means a current changing at 1 amp per second induces 1 volt across the coil. Practical radio inductors are usually in the microhenry (uH) or millihenry (mH) range.
Watch out The farad is the unit of capacitance, the electrical opposite of inductance, and is the most common mix-up; the coulomb measures quantity of charge and the ohm measures resistance or impedance.
Inductance = Henry (H), like the coil in a Ford's ignition; capacitance = Farad (F).